Coil-support for electric transformers.



'PATENTED APR. 28

H. C. SOULE. COIL SUPPORT FOR ELECTRIC TRANSFORMERS.

APPLICATION FILED AUG. 3, 1907.

2 SHEETS-SHEET 1.

v INVENTOR ATTORNEYZ No. 885,800. PATENTED APR. 28, 1908.

H. 0. SOULE. GOIL SUPPORT FOR ELECTRIC TRANSFORMERS.

APPLICATION FILED AUG. 3, 1907.

2 8HEETB-SHEET 2.

- ATTORINEYR UNITE STATES, ,PATENr onn on.

HERBERT O. SOULE, OF WILKINSBURG, PENNSYLVANIA, ASSIGNOR TOWVESTINGHOIISE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

CQ Lr UPPORT FOR ELECTRIC TRANSFORMERS.

Specification of Letters Patent.

Patented April 28, 1908.,

Application filed August 3, 1907. Serial No. 386,856.

the ends of the coils which extend beyond themagnetizable core member of the transformer.

It is s ecially desirable in transformers of 'the she] type to provide a coil-supporting means which may be readily ap lied to the coil-ends and be independent the transformer casing, the transformer core and the core frame.

Figure 1, of the accompanying drawings, isa side elevation of a transformer equipped with the coilsupport of my invention, the transformer casing being broken away to disclose the transformer proper. Figs. 2 and 3 are detail views of the coil support shown in Fig. 1, and Figs. 4 and 5 are details of a modifled form of side bar which may be employed in lieu of the corresponding parts shown in Fi s. 1, 2, and 3.

eferring to the drawings, the transform er 1 comprises a magnetizable core member 2 which is constructed of laminated iron,

bound together by end frames 8 and tie bolts 4, a Winding 5 comprising a plurality of coils v6, and coil supports 7.

The coils 6, ofwhich the winding 5 is composed, are separated by insulating strips or spacers 8 and their relative position is maintained independently of the transformer casing 9 and the core member 2 by the coil supports. Each coil support 7 comprises a pair of similar side pieces 10 built up of angle irons 11 which are so arated from each other by a plurality of hol ow cylindrical washers 12 or sections of pipe and are fastened together by rivets 13 which are surrounded by the parts 12. Strips 14; of insulating material areseoured to the. angleironsll and cross bolts 15 are located at the. ends of th e a core member and a winding side pieces andserve to clamp them to tile coils.

In order to protect the coils from contact with the bolts 15, relatively thin strips 16 of fullerboard or other suitable insulating ma-Y terial are secured to the "innerfsui'facesio f the strips 14 and are bent inwardly at tli'eir'nds into planes arallel to the bolts. The frame thus forme is clamped onto the ends of the', transformer winding which {project beyond the core structure, the side pieces of the coil supports being held in engagement withcthe fiat sides of the coil ends by meansof 'thef65f cross bolts 15. g V k I, In three-phase traii'sformersof the,si'lreflfj type the s aces betwerithe groups of wind mgs are 0 ten so limited that it wouldbejine possible or inconvenient'to useflthe port illustrated ill-Figs. 2' and '3, and it may,

therefore, be desirable, in some cases, to emv ploy side lpieces such as are illustrated inFi I 4 and 5 aving end'holes 17 to receive t e cross bolts and opposite end slots 18' to re- .ceive the last bolt'after the suppdrti ii frame,

is placed in positionf'o'n the trans fo'rme windf 1 mg. I

I claim as my invention: I

1. In a transfofiii er, the combination with a core member a '"da' Winding having a plurality of coils which proj ect beyond the ends of the core member, of means independent of the other transformer parts for supporting the projecting ends of the windings.

2. In a transformer, the combination with a core member and a winding having a plurality of coils which project beyond the ends of the core member, of a supporting frame, inde endent of-the other transformer parts, for c amping the ends of the coils in position.

3. In a transformer, the coinbinationwith a core member and a Winding having a plu rality of coils which project beyond the ends of the core member, of an adjustable clamping frame, independent of the other trans-- former parts, for holding the ends of the coils in position.

4. In a transformer, the combination with having a plurality of coils which project be end the ends of the core member, of means or supporting, the projecting ends of' the windings comprising side bars which rest against and are insulated from the coils, and cross bolts which side bars and cross bolts which connect the connect the ends of the side bars. extremities of the side bars. 10

5. In a transformer, the combination with In testimony whereof, I have hereunto suba core member, a winding having a plurality scribed my name this 30th da of Jul 1907.

5 of coils which project beyond the end of the HERBER C. SO E.

core member, of an adjustable coil-support- Witnesses: ing frame comprising side bars built up of O'rro S. SOHAIRER,

iangle irons; insulating strips secured to the BIRNEY Hmns. 

